#!/bin/ksh
#
# CDDL HEADER START
#
# This file and its contents are supplied under the terms of the
# Common Development and Distribution License ("CDDL"), version 1.0.
# You may only use this file in accordance with the terms of version
# 1.0 of the CDDL.
#
# A full copy of the text of the CDDL should have accompanied this
# source. A copy of the CDDL is also available via the Internet at
# http://www.illumos.org/license/CDDL.
#
# CDDL HEADER END
#
#
# Copyright (c) 2012, 2016 by Delphix. All rights reserved.
#
. $STF_SUITE/include/libtest.shlib
#
# DESCRIPTION:
# Verify 'zfs send' can generate valid streams with different options
#
# STRATEGY:
# 1. Create datasets
# 2. Write some data to the datasets
# 3. Create a full send streams
# 4. Receive the send stream
# 5. Do a dry run with different options and verify the generated size
# estimate against the received stream
#
verify_runnable "both"
function cleanup
{
for ds in $datasets; do
datasetexists $ds && zfs destroy -rf $ds
done
}
function cal_percentage
{
typeset value=$1
return=$(echo "$PERCENT * $value" | bc)
return=$(echo "$return / 100" | bc)
echo $return
}
function get_estimate_size
{
typeset snapshot=$1
typeset option=$2
typeset base_snapshot=${3:-""}
if [[ -z $3 ]];then
typeset total_size=$(zfs send $option $snapshot 2>&1 | tail -1)
else
typeset total_size=$(zfs send $option $base_snapshot $snapshot \
2>&1 | tail -1)
fi
if [[ $options == *"P"* ]]; then
total_size=$(echo "$total_size" | awk '{print $2}')
else
total_size=$(echo "$total_size" | awk '{print $5}')
total_size=${total_size%M}
total_size=$(echo "$total_size * $block_count" | bc)
fi
echo $total_size
}
function verify_size_estimates
{
typeset options=$1
typeset file_size=$2
typeset refer_diff=$(echo "$refer_size - $estimate_size" | bc)
refer_diff=$(echo "$refer_diff / 1" | bc)
refer_diff=$(echo "$refer_diff" | nawk '{print ($1 < 0) ? ($1 * -1): $1'})
typeset file_diff=$(echo "$file_size - $estimate_size" | bc)
file_diff=$(echo "$file_diff / 1" | bc)
file_diff=$(echo "$file_diff" | nawk '{print ($1 < 0) ? ($1 * -1):$1'})
typeset expected_diff=$(cal_percentage $refer_size)
[[ -z $refer_diff && -z $file_diff && -z $expected_diff ]] && \
log_fail "zfs send $options failed"
[[ $refer_diff -le $expected_diff && \
$file_diff -le $expected_diff ]] || \
log_fail "zfs send $options gives wrong size estimates"
}
log_assert "Verify 'zfs send -nvP' generates valid stream estimates"
log_onexit cleanup
typeset -l block_count=0
typeset -l block_size
typeset -i PERCENT=1
((block_count=1024*1024))
# create dataset
log_must zfs create $TESTPOOL/$TESTFS1
# create multiple snapshot for the dataset with data
for block_size in 64 128 256; do
log_must dd if=/dev/urandom of=/$TESTPOOL/$TESTFS1/file$block_size \
bs=1M count=$block_size
log_must zfs snapshot $TESTPOOL/$TESTFS1@snap$block_size
done
full_snapshot="$TESTPOOL/$TESTFS1@snap64"
increamental_snapshot="$TESTPOOL/$TESTFS1@snap256"
full_size=$(zfs send $full_snapshot 2>&1 | wc -c)
increamental_size=$(zfs send $increamental_snapshot 2>&1 | wc -c)
increamental_send=$(zfs send -i $full_snapshot $increamental_snapshot 2>&1 | wc -c)
log_note "verify zfs send -nv"
options="-nv"
refer_size=$(get_prop refer $full_snapshot)
estimate_size=$(get_estimate_size $full_snapshot $options)
log_must verify_size_estimates $options $full_size
log_note "verify zfs send -Pnv"
options="-Pnv"
estimate_size=$(get_estimate_size $full_snapshot $options)
log_must verify_size_estimates $options $full_size
log_note "verify zfs send -nv for multiple snapshot send"
options="-nv"
refer_size=$(get_prop refer $increamental_snapshot)
estimate_size=$(get_estimate_size $increamental_snapshot $options)
log_must verify_size_estimates $options $increamental_size
log_note "verify zfs send -vPn for multiple snapshot send"
options="-vPn"
estimate_size=$(get_estimate_size $increamental_snapshot $options)
log_must verify_size_estimates $options $increamental_size
log_note "verify zfs send -inv for increamental send"
options="-nvi"
refer_size=$(get_prop refer $increamental_snapshot)
deduct_size=$(get_prop refer $full_snapshot)
refer_size=$(echo "$refer_size - $deduct_size" | bc)
estimate_size=$(get_estimate_size $increamental_snapshot $options $full_snapshot)
log_must verify_size_estimates $options $increamental_send
log_note "verify zfs send -ivPn for increamental send"
options="-vPni"
estimate_size=$(get_estimate_size $increamental_snapshot $options $full_snapshot)
log_must verify_size_estimates $options $increamental_send
log_must zfs destroy -r $TESTPOOL/$TESTFS1
#setup_recursive_send
datasets="$TESTPOOL/$TESTFS1 $TESTPOOL/$TESTFS1/$TESTFS2
$TESTPOOL/$TESTFS1/$TESTFS2/$TESTFS3"
# create nested datasets
log_must zfs create -p $TESTPOOL/$TESTFS1/$TESTFS2/$TESTFS3
# verify dataset creation
for ds in $datasets; do
datasetexists $ds || log_fail "Create $ds dataset fail."
done
for ds in $datasets; do
log_must dd if=/dev/urandom of=/$ds/file64 \
bs=1M count=64
done
# create recursive nested snapshot
log_must zfs snapshot -r $TESTPOOL/$TESTFS1@snap64
for ds in $datasets; do
datasetexists $ds@snap64 || log_fail "Create $ds@snap64 snapshot fail."
done
recursive_size=$(zfs send -R $full_snapshot 2>&1 | wc -c)
log_note "verify zfs send -Rnv for recursive send"
options="-Rnv"
refer_size=$(get_prop refer $full_snapshot)
refer_size=$(echo "$refer_size * 3" | bc)
estimate_size=$(get_estimate_size $full_snapshot $options)
log_must verify_size_estimates $options $recursive_size
log_note "verify zfs send -RvPn for recursive send"
options="-RvPn"
estimate_size=$(get_estimate_size $full_snapshot $options)
log_must verify_size_estimates $options $recursive_size
log_pass "'zfs send' prints the correct size estimates using '-n' and '-P' options."